| TLS中加密算法的安全性分析 |
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| 引用本文： | 张鑫,彭亚雄.TLS中加密算法的安全性分析[J].通信技术,2014(9):1071-1074. |
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| 作者姓名： | 张鑫 彭亚雄 |
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| 作者单位： | 贵州大学电子信息学院,贵州贵阳550025 |
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| 摘 要： | 阐述了TLS协议的握手过程中服务器端与客户端之间的交互，对其中关键的RC4加密技术即密钥调度算法（ KSA）、伪随机书生成算法（ PRGA）等进行分析，着重就目前的加密过程中伪随机书生成算法（ PRGA）存在的安全性问题进行分析。在猜测赋值分析方法基础上分析了PRGA初始状态已知值数量及分布规律与 RC4破解的复杂度的相关性。特定情况下，该方法能有效的破译RC4。
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| 关 键 词： | 安全传输层 协议加密算法 伪随机书生成算法 初始状态复杂度 |
Analysis on the Security of Encryption Algorithm in TLS |
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| ZHANG Xin,PENG Ya-xiong.Analysis on the Security of Encryption Algorithm in TLS[J].Communications Technology,2014(9):1071-1074. |
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| Authors: | ZHANG Xin PENG Ya-xiong |
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| Institution: | (College of Electron and Information, Guizhou University, Guiyang Guizhou 550025, China) |
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| Abstract: | This article expounds the interaction of between the client and server in the handshake of TLS protocol, then analyzes the key encryption technologies of RC4,including KSA, RPGA, and the current security issues in PRGA process. Based on the value-analysis method, the of between the quantity of the known PRGA initial states, the location and the complexity of RC4 crack is analyzed. In some particular conditions, this method can decode RC4 effectively. |
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| Keywords: | TLS encryption decryption algorithm PRGA initial state complexity |
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